2499671 has 2 divisors, whose sum is σ = 2499672. Its totient is φ = 2499670.

The previous prime is 2499667. The next prime is 2499689. The reversal of 2499671 is 1769942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2499671 - 2² = 2499667 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2499631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249835 + 1249836.

It is an arithmetic number, because the mean of its divisors is an integer number (1249836).

2^2499671 is an apocalyptic number.

2499671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2499671 is an equidigital number, since it uses as much as digits as its factorization.

2499671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 38.

The square root of 2499671 is about 1581.0347877261. The cubic root of 2499671 is about 135.7149269459.

The spelling of 2499671 in words is "two million, four hundred ninety-nine thousand, six hundred seventy-one".